RU2755852C1 - Drying room folding door - Google Patents

Abstract

FIELD: woodworking and wood-chemical industry.

SUBSTANCE: invention relates to the woodworking and wood-chemical industry, in particular to equipment for drying wood, and can be used in the design of drying machines. A hinged door of the drying chamber is proposed, which consists of a door leaf and a unit for connecting the door to the chamber body, while the unit for connecting the door to the chamber body is located in the lower part of the door leaf, and the door in the upper part is equipped with a winch.

EFFECT: removal of the lateral deforming load on the structure of the body and opening of the drying chamber, saving space outside the chamber area, possibility of free access and loading of the trolley platform from any side, possibility of integrating a section of the rail track for rolling out the trolley into the door structure, giving it additional rigidity.

4 cl, 3 dwg

Description

The invention relates to the woodworking and wood-chemical industry, in particular to equipment for drying wood, and can be used in the design of drying machines.

Known installation for drying sawn timber (patent for invention No. RU 2042093 published on 20.08.1995), containing a drying unit, including a heat-insulated sealed casing with air ducts placed in it, thermometers with a wetting system to control temperature and humidity, a rail track, a transport gate, and an apparatus a unit including a fan with air ducts, a heater and a condensing device with a closed cooling circuit and a drip tray for collecting condensate, characterized in that the drying and hardware units are made in the form of modules docked with connectors and flexible connections, and the rail track is equipped with a folding section connected with the latter hinged, and the body with a vertically fixed lever interacting with the hinged section, while the design uses swing or sliding doors of the chamber.

The use in the design of the described analogue of swing (wing) or sliding doors has a number of disadvantages.

When opening swing doors fixed on hinges, free space is required outside the working area of the chamber; since doors in convection and vacuum drying chambers have a large mass, powerful force hinges are required that can withstand lateral loads; in addition, the structure of the door opening must withstand deformation loads arising in the open position of the door; it is difficult to load materials into the chamber from the side to which the door is open.

Sliding door designs also require free space outside the working area of the chamber; an additional design of the guides is required to roll the power door out of the chamber.

The closest technical solution, chosen as a prototype, is a lifting door for drying chambers (patent for invention SU 15811, published 06/30/1930), connected by hinges with an additional frame, together with it, lifted by a cable attached to the door. This patent describes the design of a door mechanism that opens by vertically moving the door along the plane of the opening of the drying chamber, thus, in the position when the loading opening of the chamber is open for work, the door is suspended above the loading opening.

The disadvantages of the prototype are:

- an increase in the total height of the entire system, which entails special requirements for the height of the ceilings and significantly limits the possibility of placing a drying chamber with such a door design in closed rooms;

- the location of the door structure and the movable frame on the cable that lifts them requires the use of a thick cable and a powerful lifting mechanism;

- the overhang of the door suspended on a cable over the loading opening of the chamber creates the danger of the door falling as a result of the cable breaking.

- the structural complexity of the mechanism for moving the door and pressing it, as well as the mechanism for preventing the door from falling in the event of a break in the retaining cable.

The objective of the claimed invention is to eliminate the above disadvantages.

The technical result to be achieved by the present invention consists in removing the lateral deforming load on the structure of the body and the opening of the drying chamber, saving space outside the chamber zone, the possibility of free access and loading of the trolley platform from any side, the possibility of integrating a section of the rail track for rolling out the trolley into door structure, while giving it additional rigidity.

To achieve the specified technical result, a hinged door of the drying chamber is proposed, consisting of a door leaf and a unit for connecting the door to the chamber body, while the unit for connecting the door to the chamber body is located in the lower part of the door leaf, and the door in the upper part is equipped with a winch.

In the horizontal position, the door serves as a support for the rail track along which the trolley rolls out and rolls; for this, a section of the rail track is integrated on the inner surface of the door.

The unit for connecting the door to the camera body is made in the form of bearing hinges.

The essence of the invention is illustrated by drawings.

Figure 1 shows a drying chamber with the declared door in a closed position, Figures 2, 3 shows a drying chamber with the declared door in an open position, where:

1 - drying chamber door;

2 - drying chamber;

3 - winch;

4 - section of the rail track;

5 - support platform;

6 - outer rail track;

7 - inner rail track;

8 - trolley;

9 - winch cable;

10 - cable fastening;

11 - track inserts.

The door 1 of the drying chamber 2 is hinged, it contains a connection unit for the door 1 (not shown in the figures) with the body of the drying chamber 2, located in the lower part of the door leaf, while the door 1 in the upper part is equipped with a winch 3, and is fixed on the inner surface of the door track section 4.

The device is used as follows.

When installing door 1, bearing hinges (not shown in the figures) are fixed to the lower end of the door and the lower end of the door opening in the horizontal plane. The bearing hinges are the connection unit of the hinged door 1 with the chamber body 2. In the closed vertical position, the door 1 rests on the hinges. When opening, the door 1 is moved to a horizontal position with the help of a winch 3 and rests on the support platform of the door 5, which is the base of the outer rail track 6 of the chamber. The section of the track 4, integrated into the door leaf, connects the outer track 6 and the inner track of the chamber 7.

In the “door closed” position, the trolley 8 is inside the chamber 2, the winch cable 9 is fixed on the cable attachment 10 and is in a taut state.

To open door 1, the winch cable 9 is unwound, the door opens and lies on the support platform 5.

Further, on the door 1, the inserts of the rail track 11 are placed and fixed between the inner rail track 7 and the outer rail track 6, forming a single track for the movement of the trolley 8. The section of the rail track 4 can be made in such a way that when the door 1 is opened, it exactly joins with external 6 and internal 7 rail tracks of the chamber, in this embodiment the use of inserts 11 is not required.

Analysis of the patent and scientific and technical literature did not reveal technical solutions with such a set of essential features, which allows us to conclude that the claimed invention meets the “novelty” criterion.

The claimed essential features that predetermine the obtaining of the specified technical result do not explicitly follow from the prior art, which makes it possible to conclude that the claimed invention complies with the patentability condition "inventive step".

Claims (4)

1. A hinged door of the drying chamber, consisting of a door leaf and a door-to-chamber connection unit, characterized in that a door-to-camera body connection unit is located in the lower part of the door leaf, while the door is equipped with a winch in the upper part. 2. The hinged door of the drying chamber according to claim 1, characterized in that the unit for connecting the door to the chamber body is made in the form of bearing hinges. 3. The hinged door of the drying chamber according to claim 1, characterized in that in the horizontal position it is a support for the rail track along which the trolley rolls out and rolls up. 4. The hinged door of the drying chamber according to claim 1, characterized in that on the inner surface of the door there is a section of the rail track along which the trolley rolls out and rolls up.

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